213810297 has 8 divisors (see below), whose sum is σ = 285306720. Its totient is φ = 142427040.

The previous prime is 213810269. The next prime is 213810299. The reversal of 213810297 is 792018312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-213810297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213810299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23779 + ... + 31512.

It is an arithmetic number, because the mean of its divisors is an integer number (35663340).

Almost surely, 2^213810297 is an apocalyptic number.

It is an amenable number.

213810297 is a deficient number, since it is larger than the sum of its proper divisors (71496423).

213810297 is a wasteful number, since it uses less digits than its factorization.

213810297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56583.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 213810297 is about 14622.2534856978. The cubic root of 213810297 is about 597.9656070942.

The spelling of 213810297 in words is "two hundred thirteen million, eight hundred ten thousand, two hundred ninety-seven".